Among the devotees, there is a common belief, God is the supreme and nothing is equal to Him or higher than Him. Lord Krishna says so in BG 7.7 "There is no truth superior to Me."
However if you analyze deeply, you will find a few contradictions in the above statements. See the below cases:
1. Yashoda mayi caught hold of Krishna and tied Him. Can you imagine, the Supreme God whom many powerful demons also failed to harm, getting bound? Or take another example, Arjuna managed to make Lord Krishna His charioteer. Just imagine the PM or President of any country becoming driver of a person! This is just not possible. But the Supreme Lord becomes the driver of His best friend. Lord Vishnu says to Durvasha muni "I am completely under the control of My devotees. Indeed, I am not at all independent." [SB 9.4.63]. So from these examples we come to know the true devotees of God are in way more powerful the Lord Himself though none of these devotees actually want to rule the Lord.
There are 4 stages of devotions (in ascending order):
i) Servant of Master
ii) Slave of Master
iii) Puppet in the hand of the Master
iv) Puppet becomes the Master and Master becomes the puppet
Take the case of Chaitanya Mahaprabhu who was none other than Krishna Himself. The hidden reason for His arrival was to know the taste of pure devotion which was known to Srimati Radharani but not to Krishna also.
So we should slowly try to elevate ourselves to the last stage where the Lord would become inferior to us.
2. Lord Rama needed a bridge to cross the ocean. But Hanuman crosses the same just by chanting Lord Rama's name. How was it possible? Once Lord Rama was angry with Humanun and wanted to punish him. Then Narada advised Hanumana to chant Lord Rama's name. Then when Lord Rama shot arrows at Hanuman, Rama's arrows were totally futile against Hanuman. The reason is simple: Lord's name is greater than the Lord Himself.
So we should take the shelter of the Holy name of the Lord which can protect us from all the dangers in the world.
Many times, the monists say we should become one with God. But through pure devotion, we can in fact become greater than God though even in the highest devotional stage also our serving attitude won't go.