Is this a sign from Mahakala?

I’ve recently started to go into Tibetan Buddhism and I have a Mahakala picture that I pray to. Recently, I prayed to mahakala for something and in my prayers, I said that I’ll give an offering if everything goes well. And things did go well and I provided offerings. And then today when I was studying, the string on my hand from a temple gave the sign of Shiva’s trident. Since Mahakala is the manifests of Shiva, is this a sign for me to go in depth into Tibetan Buddhism?

I’ve recently started to go into Tibetan Buddhism and I have a Mahakala picture that I pray to. Recently, I prayed to mahakala for something and in my prayers, I said that I’ll give an offering if everything goes well. And things did go well and I provided offerings. And then today when I was studying, the string on my hand from a temple gave the sign of Shiva’s trident. Since Mahakala is the manifests of Shiva, is this a sign for me to go in depth into Tibetan Buddhism?