Our mind shall find joy in the things of the God only when we shall have some devotion towards the God. God is sitting in our heart & the pure soul joy is there within each of us. If our mind shall turn inwards & see the God sitting in our heart, then only we shall get the eternal pure joy & peace which is much better than the joy of the senses of the outside world.
Now human mind is so stubborn that it shall not turn easily inwards as it is accustomed to the things of the outer world. Our mind always hankers in our daily affairs, in our family & in the things of this world & has no place for the God in our day to day life. It is only due to the stubborn nature of the mind that it refuses to move towards the God, if it is finding joy in the outside world. In fact "Mind" is very powerful one & to control it, is just like keeping in control a raging bull. It just wanders like the wind, here & there & it takes enough of self discipline & practice of meditation to control it. In Bhagwat Gita, nature of mind is beautifully described which is there in below verses:
As per "Arjuna" to "Lord Sri Krishna" in Bhagwat Gita Chapter Six verse 34:
"chanchalam hi manah krishna
pramathi balavad drdham
tasyaham nigraham manye
vayor iva su-duskaram" (Bhagwat Gita: Chapter Six verse 34)
"Arjuna said: For the mind is restless, turbulent, obstinate and very strong, O Krishna, and to subdue it, to control it, I think, is more difficult than controlling the wind."
mano durnigraham chalam
abhyasena tu kaunteya
vairagyena cha grhyate" (Bhagwat Gita: Chapter Six verse 35)
"Lord Sri Krishna said: O mighty-armed Arjuna, it is undoubtedly that mind is very difficult to curb & is restless, but it is possible by suitable practices of meditation and by detachment to control it."
So, if we want to have some devotion in God & want "Peace of Mind", then we need to change the direction of our "Mind", from this world to the God sitting in our heart. Unless our "Mind" stops wandering in this world, it shall not find peace. Our Soul is the centre in our heart & only when our "Mind" turns toward that centre, it shall not find peace. Our "Mind" shall not find peace & joy, if it moves away from the "Soul center" in our heart & moves in the outside world. So if you want to find the joy, bliss & peace in your life, just turn your mind inwards towards the God, who is sitting in your heart invisibly. It is the promise of the God in Bhagwat Gita that He shall welcome anyone who shall come to Him & He shall always protect that person. So let's change the direction of our mind from the outside world to the God. As per the below verse, if we shall do so, then we shall reach the God & shall enjoy the Bliss, Peace, Joy & Eternal Love with Him.
God, Lord Sri Krishna says to Arjuna in Bhagwat Gita:
"Be aware of me always, adore me, make every act an offering to me, and you shall come to me; this I (Krishna) promise to you, for you are dear to me". (Bhagwat Gita: Chapter Eighteen verse 65)
"Whosoever, always & constantly remembers Me with undivided mind; by that person, I am easy to obtain, O Arjuna, because of his constant engagement in the devotional service to Me". (Bhagwat Gita: Chapter Eight verse 14)
So let's have devotion towards the God. Let's remember God for some time in our daily life so that we can too generate some "Spiritual Emotion" toward the God. Once that is developed, we shall always find God near us & our life shall be filled with joy, love & ecstasy. So the Devotion to God is the supreme. It removes all the sins of a devotee & removes all the ignorance from one's life.
Jai Sri Krishna.