Being God's children doesn't make us "like" or equal to God. We are human, a little higher than the angels; not even close to God - One we cant even look upon without death.
Our desire should be worship of Him and life in service to Him and His children - not aspirations of grandeur.
Knowledge of the afterlife is best coming from Scripture, where it is described for us.. we are certain there isn't satanic or demonic influence when we trust in His Revelation to His people.
God from the start made us like himself. And the plan is more and more. And in Christ blood we have restoration, of what Adam lost. More than twice.
Grandeur is something God promises, to move us to service... And make us sober in judging each other and so we are strong in regards to life's passing pleasures.
From TS 2009
Heb 2:5 For it is not to messengers that He has subjected the world to come, concerning which we speak.
Heb 2:6 But somewhere one has witnessed, saying, “What is man that You remember him, or the son of man that You look after him?
Heb 2:7 “You have made him a little lower than Elohim.a You have crowned him with esteem and respect, and set him over the works of Your hands. Footnote: aAccording to the Greek text - messengers; however, this verse is quoted from Psa_8:5.
Heb 2:8 “You have put all in subjection under his feet.” Psa_8:4-6 For in that He put all in subjection under him, He left none that is not subjected to him. But now we do not yet see all subjected to him.
Heb 2:9 But we do see Him who was made for a little while lower than the messengers, יהושע, because of the suffering of death crowned with esteem and respect, that by the favour of Elohim He should taste death for everyone.
Heb 2:10 For it was fitting for Him, because of whom all are and through whom all are, in bringing many sons to esteem, to make the Prince of their deliverance perfect through sufferings.
Heb 2:11 For both He who sets apart and those who are being set apart are all of One, for which reason He is not ashamed to call them brothers,
Heb 2:12 saying, “I shall announce Your Name to My brothers,b in the midst of the congregation I shall sing praise to You.” Psa_22:22. Footnote: bSee also Psa_45:17, Joh_17:6 and Joh_17:26.
Heb 2:13 And again, “I shall put My trust in Him.” Isa_8:17 And again, “See, I and the children whom Elohim gave Me.” Isa_8:18.