Yes, its not a good thing praying to ghosts to get favors or repaying them with favors. We should respect them but give it a distance. Its the same with God. There's absolutely no need to be in awe or afraid of God and no point worshipping it. But respect is a must even though the God or gods are represented in different religions or forms. Honour God if you a believer by conducting yourself well in your everyday life. Don't need to worship it.