You feel they are required to explain any of their reaction and relationship to and with God????? Do they need your approval to come to God as they are led to?
No they don't need to explain it to anyone... Not me not you not anyone..
God of course looks into the minds of people and knows exactly why one is celebrating or dancing.. So they don't need to explain it to God.. I can think of good reasons to celebrate at a funeral, if i was assured that the person who had died was destined to eternity with God i would be celebrating with great joy.. And i would have no problem with a person dancing with Joy in a Church..
King David danced with joy and passion before the Arc of the covenant in the OT and a woman ( don't remember her name off the top of my head ) mocked and tried to shame David for doing so.. God saw to it that that woman was never blessed with a child as a judgement upon her.. God knew why David was dancing and the LORD was well pleased with David..
Looked it up.. Here is the passage about David and his dance.. Hope you have a read..
2 Samuel 6: KJV
12 "¶ And it was told king David, saying, The LORD hath blessed the house of Obed–edom, and all that pertaineth unto him, because of the ark of God. So David went and brought up the ark of God from the house of Obed–edom into the city of David with gladness. {13} And it was so, that when they that bare the ark of the LORD had gone six paces, he sacrificed oxen and fatlings. {14} And David danced before the LORD with all his might; and David was girded with a linen ephod. {15} So David and all the house of Israel brought up the ark of the LORD with shouting, and with the sound of the trumpet. {16} And as the ark of the LORD came into the city of David, Michal Saul’s daughter looked through a window, and saw king David leaping and dancing before the LORD; and she despised him in her heart. {17} ¶ And they brought in the ark of the LORD, and set it in his place, in the midst of the tabernacle that David had pitched for it: and David offered burnt offerings and peace offerings before the LORD. {18} And as soon as David had made an end of offering burnt offerings and peace offerings, he blessed the people in the name of the LORD of hosts. {19} And he dealt among all the people, even among the whole multitude of Israel, as well to the women as men, to every one a cake of bread, and a good piece of flesh, and a flagon of wine. So all the people departed every one to his house. {20} ¶ Then David returned to bless his household. And Michal the daughter of Saul came out to meet David, and said, How glorious was the king of Israel to day, who uncovered himself to day in the eyes of the handmaids of his servants, as one of the vain fellows shamelessly uncovereth himself! {21} And David said unto Michal, It was before the LORD, which chose me before thy father, and before all his house, to appoint me ruler over the people of the LORD, over Israel: therefore will I play before the LORD. {22} And I will yet be more vile than thus, and will be base in mine own sight: and of the maidservants which thou hast spoken of, of them shall I be had in honour. {23} Therefore Michal the daughter of Saul had no child unto the day of her death."