Dreaming of Vaishno Devi temple is good as per dream interpretation and meaning. First important meaning is that Maa Vaishno Devi is asking you to come and visit her. It is also a sign that you will see peace and progress, if you follow dharma and goodness.
Dreaming of praying before pindi of Goddess Vaishno Devi means there will be increase in wealth. You will find solution to an ongoing problem.
Trekking or walking to Maa Vaishno Devi temple means you will achieve success in life you are ready to do hard work. There will be such an opportunity in near future and you should make use of it.