Think of the holy spirit as just an emotion. True holiness comes from a perfect and divine love. The invisible God isn't just a spirit but a real entity with power, intelligence and emotion. He is real and exists within us and with us. You can't speak of God without the word spirit, this is why the Bible is sometimes confusing. It was also hard for God to define and explain Himself or we would all understand everything about Him.
He is real and He made us--
Isaiah 46:4
God is spirit---
John 4:24
God is love----
1 John 4:8
God is our creator--
Isaiah 40:28
God is holy and divine--
Isaiah 57:15
Spirit of God--
Genesis 1:2
God our creator is married to us (meaning joint existence/co-ownership)--
Jeremiah 3:14
God is the way, truth and life--
John 14:6 --His name is Jesus