Mary said May it happen to me according to your word. (Luke1:38) and Jesus Christ said Father, "Yet not My will, but Yours be done." (Luke 22:42). It is through these obedient and submissive words of Mother Mary and Our Lord Jesus Christ, God's plan of salvation of human beings is accomplished. It is not just them there were many people around them who submitted their lives to the will of God, with perfect obedience.
It is through this obedience and submission we get into the inseparable unity and communion with God. The submission to God is not an easy walk, it comes with so many trials, temptations, hardships, pains, opposition from the world and the devil. But still God leads us into victory through His Word, Spirit, Wisdom and Guidance. It is not possible to walk in the will of God which out His Spirit. When we submit to His will, He fills is with the Spirit. The Spirit filled Mary and Jesus and everyone who submitted to the will of God and agreed to walk by it.
Everything seems perfect here in the Spiritual realms, but when we look at it from the way this whole submission works in the worldly life looks so difficult and so impossible in flesh. In the world the people who submit to the will of God, face many setbacks, it feels so lonely, wilderness and difficult, when we isolate the sufferings from the plan of God. The plan of God is perfect. It feels so unworthy for us human beings when we consider our selves as being the part of plan of God, but still God has a plan for us and we are called to walk by it in perfect submission and obedience so we taste the fruit of true communion with Him by aligning to His will.
By bowing down to Him, and submitting our strength, wisdom, heart, desires, feelings, pleasures and our own self in front of His as a living sacrifice to Him, by agreeing to crucify our self on the cross with our Lord Jesus Christ and be born with the Spirit of submission and obedience to the will of God, aligned to our Lord Jesus Christ.