Satisfaction and joy in this life can be found in the Lord alone. It can not be found in fame or in things money can buy. It can not be found in youth or youthful pursuits, for that will fade with time. Human love can provide joy and satisfaction for a time, but it too will pass in time. I personally have married, loved, and buried two husbands in my lifetime.
Friends and friendships also provide blessings in our lives, but they too are not permanent. Friends and family can comfort me, but they can not meet my needs the way the Lord God does through Scripture and through the Holy Spirit's comfort and encouagement. Friends and family can help me, but they cannot heal me. Also only the Lord can promise to never leave me or forsake me. Only the Lord can promise an eternal future with Him. Only the Lord can provide lasting satisfaction, light, and joy.
"Truly my soul finds rest in God; my salvation comes from Him." (Psalm 62:1) Other people, experiences and even things can be instruments of grace and blessing in our lives for a time, but only the Lord can provide lasting fullfillment and satisfaction.