What is Deen?

Do they not ponder about their own selves? Allah has created the heavens and the earth, and everything in between for a specific purpose and a predetermined period. But most people just fail to accept the meeting/consequences with their LordLaw (of Nature). (Q30:8)

Arrogance on Earth, and scheming of evil... but the scheme of evil encompasses only those who scheme it! Are they awaiting one who follows a way other than the sunnah that the previous people followed? You will never encounter an alternative for sunnatullah. You will never find an alteration in the sunnatullah! (Q35:43)

Millah Ibrahim

Is it other than the deen/way of Allah (Sunnatullah) that you desire, when everything in the (natural law of) heavens and earth, willingly or unwillingly, submits (أَسْلَمَ) to Him (Sunnatullah, Law of Nature) and to Him you will be returned (for its law of cause and effect)? (Q3:83)

When his Lord said to him: Submit! He said: I submitted to the Lord of the worlds (LordLaw of Nature, Sunnatullah). (Q2:131)