Being self-absorbed is empty and void of true life -- it is temporary, erratic, and insufficient.
Being God ¹absorbed is life -- He is the all-sufficient, permanent, and never-failing source of love, life, and all things.
Since God is life, is it any wonder He is constantly calling us to be obsessed with Him; to love Him with all that we have and are and to always bring Him glory? He's calling us to nothing less than being obsessed with life itself because He is life and fullness of life is in Him alone and nothing else. He calls us to Himself because he loves us that much.
"And this is eternal life (i.e. permanent life. Life without interruption), that they know you the only true God, and Jesus Christ whom you have sent." - Jesus Joh 17:3
"Jesus said to him, 'I am the way, and the truth, and the life. No one comes to the Father except through me.' " - Jesus' response to Phillip. John 14:6
"Whoever finds his life will lose it, and whoever loses his life for my sake will find it." - Jesus speaking to the 12 disciples. Mat 10:39
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¹If this grates on us, it only indicates how bent we are towards being our own god. Who hasn't heard or even made the comment, "a little bit of God is OK but let's not go overboard!"
However, when you see those fortunate enough to have great success in this life, still have prolonged periods of loneliness and depression; even ending their lives in the midst of such great "success," this should be a clue we were made for more, far more. We were made for infinite love.
Some have argued we can be so heavenly minded we are no earthly good when it is the other way around. We can not be of any true earthy value until we are totally plugged into the heavenly bliss and glory shared between the Father, Son, and Spirit. Or as Jesus says, "And you shall love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength.' The second is this: 'You shall love your neighbor as yourself.' There is no other commandment greater than these." - Mar 12:30-31. We can only carry out the latter part of this commandment as we plug into the former.