Every spring on the face of the earth a glorious army is raised to life which consists of three hundred thousand species of living beings of infinite variety. With its innumerable members, all of whose lives and necessities are given them with perfect order and regularity. (The Rays)

In Ramadan the believers experience enlightenment, fruitfulness, and spiritual joys which differ according to their degrees. Their subtle faculties, such as the heart, spirit, and intellect, make great progress and advancement in that blessed month by means of fasting. They laugh with innocent joy in spite of the stomach’s weeping (Letters)

“Things are known through their opposites.” For example, if there was no darkness, light would not be known and would contain no pleasure. If there was no cold, heat could not be comprehended. (The Flashes)

There are three things; Allah will protect a person who does them in all aspects and put him in His Paradise:
Showing mercy to the weak; showing compassion to one's parents and doing favors to those who are under one's command. Hadith - Jamiu’s-Saghir - 3416

“And hold fast, all together by the rope which Allah (stretches out for you), and be not divided among yourselves; and remember with gratitude Allah's favor on you; for ye were enemies and He joined your hearts in love so that by His Grace, ye became brethren; and ye were on the brink of the pit of fire, and He saved you from it. Thus doth Allah make his signs clear to you: that ye may be guided.” Aal-i Imran-103.

Fasting in Ramadan strikes direct blows at the soul’s pharaoh-like front, shattering it. It demonstrates its impotence, weakness, and want. It makes it realize that it is a slave. (The Twenty - Ninth Letter)

With Him are the keys of the Unseen, the treasures that none knoweth but He. He knoweth whatever there is on the earth, and in the sea. Not a leaf doth fall but with His knowledge: there is not a grain in the darkness (or depths) of the earth nor anything fresh or dry (green or withered) but is (inscribed) in a Record Clear (to those who can read). (Surah Al-Anaam 59)

Here the Qur’an is saying in the face of rebellious man’s denials, who is as though challenging the Qur’an by saying, “Who will raise to life rotten bones?”, “Whoever created them in the first place, He will raise them to life. And that Creator knows every single aspect of every single thing. Furthermore, He who provides fire for you from the green tree, is able to give life to dry bones.” (The Words)

This world which is like a palace, and country which is like town, has a single maker and that it is only he who runs and administers everything. He is completely free of all deficiency. This maker, who does not appear to us, sees us and everything, and hears our words.
All his works are miracles and marvels. All these creatures whom we see but whose tongues we do not understand are his officials. (The Words)

I leave you two things. If you adhere to them, you will not deviate. One of them is the book of Allah; the other is my sunnah. They will not separate from each other until they reach the Pond of Kawthar. (Hadith - Jamiu's-Saghir - 3923)

An artistic inscription cannot exist without making known its inscriber, how is it that an inscriber who writes a huge book in a single letter and inscribes a thousand inscriptions in a single inscription should not be known through his writing and through his inscribing? The Words

It is stated in a hadith that every morning an angel calls out:“You are born to die, and construct buildings that they may be destroyed.” (Hadith al-Ajluni)

The Messenger of Allah (pbuh) states the following in a hadith: "When Doomsday approaches, time will pass faster. A year becomes like a month. The time period between two Fridays shortens like the date branch burns in fire with its leaves.” (Hadith - Ramuz al-Ahadith)

Yes, the glorification of all plants at the time their flowers open, and the moment they produce new shoots, and when they offer their smiling words is as beautiful and clear as themselves. (The Words)

Then shall anyone who has done an atom's weight of good, see it!
And anyone who has done an atom's weight of evil, shall see it. (Surah Al-Zalzala: 7-8.)