Hi D____,
Thank you for your question. You ask if Christ’s return is personal and spiritual?
The answer is that it certainly is for His elect. If it were not, then we would not have Christ in us.

Joh 14:28  Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I.

How does Christ accomplish this? He comes to us through His Father’s spirit which His Father gave to Him:

Joh 16:7  Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.
Joh 16:15  All things that the Father hath are mine: therefore said I, that he [ the comforter, the holy spirit, the spirit of Truth] shall take of mine, and shall shew it unto you.
Joh 16:16  A little while, and ye shall not see me: and again, a little while, and ye shall see me, because I go to the Father. [ Read Is God A Trinity?]

That is what Christ meant when He said, “I come again unto you.”
Does this deny that some of his elect will be standing on this earth when He takes control of the kingdoms of this world? Absolutely not:

1Co 15:51  Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,

Those who happen to be standing on this earth when Christ takes over and gives the kingdoms of this world to His Christ will then be changed into spirit.
I hope this helps you to see that Christ’s second coming for His elect is spiritual and NOW, but for all others it is future.
Your brother in Christ.
Mike