Sangat, There is mention of nidhi/ridhi/sidhi in Gurubani, which can be taken as good as miracles! Also, Gurubani talks about these: "Sabh Nidhaan Das Ast Sidhaan Thaakur Kar Tal Dhariaa." "Tudh Vinn Sidhee Kinai Na Paaeeaa" In one discussion on sikhpal.com, it came up with following information: Sidhis or supernatural powers are mentioned to be eighteen in number. Of them, the eight are known as major and the remaining are considered minor. The eight principle Sidhis are as follows: the power to assume form as small as atom (Anima), as large as mountain (Mahimaa), as light in weight as air (Laghimaa), and as heavy in weight as the Earth (Grimaa); the power to attain anything desired (Praapati), to bring all senses under one's control (Vasitva), to have unhampered will (Prakaamaya), and the lordliness (Isha). The minor Sidhis are namely the power to be immune from hunger and thirst (Anooram), to hear from afar (Door Sharavan), to see from afar (Door Darshan), to travel fast like thought (Manoveg), to assume any desired form (Kaamroop), to enter into another's body (Parkaayi Parvesh), to die at one's own will (Sai Maritayaa), to enjoy meeting with gods (Surkareeraa), the fulfillment of desires (Sankalap Sidhi), and to go anywhere unobstructed (Apratihat Gat). On the other hand, we say sikhism doesnt support miracles. Or Am I missing something? Best Regards.