If their defences are strong, it is because you have not used the weapon of mercy.
‘Were you rough and hard of heart they would have dispersed from round about you.’ (3:159) is the battlecry of Da’wa. ‘Allah gives through gentleness what He does not give through roughness’ (Hadith). The Holy Prophet ﷺ transformed his hard-hearted people in only twenty-three years. He took them from the many to the One, from vendetta to the Sacred Law, from despair over death to the certainty of eternal life. In this he was ‘sent only as a mercy to the worlds’ (21:107). But without his mercy this mercy would have been marked ‘Return to Sender’.
“Nafs is a comedian. So enjoy your Sufism!”
Humour is a divine subtlety in man, rooted in the absurdity of the possibility of human disagreement with reality. Its absence from nature indicates that it is connected to the struggle of the spirit, which only man can know. Lying or mockery are forbidden by the Sunna; and yet three forms of humour will do us immeasurable service.