This is a consecrated temple of Harati Ajima at Swayambhunath. You can make offerings and go close to the Devi. There is space to sit and meditate. You can go into meditative states effortlessly here.
How to get there
This temple is located next to Swayambhunath, on the top of hill.
Map: https://goo.gl/maps/2MsHykgYctT9aPT26
About Harati Ajima
On the northwest side of the Swoyambhu stupa stands traditional nepali multi roofed (Pagoda) style temple where resides the Goddess hariti (harati maa) and also called “Ajima”. The word “Ajima” comes from two Nepal Bhasa words, “Aji” meaning grandmother and “Ma” meaning mother. Yet she is sometimes called Sitalamaju, the deity of smallpox.
Female Yaksha and Lord Buddha
Once upon a time when Lord Buddha was residing at Rajgir, a powerful female Yaksha was creating much trouble and causing suffering to local people by stealing their children and devouring them. She used to feed her large family at least 500 children daily and thus local people were greatly terrified and were in a state of despair and distress. At that time, people rushed to that place, requesting the Buddha to protect them from the demon, the Great Yakshani Hariti. Buddha then consoled them by saying that he would definitely subdue Hariti and proceeded to visit Hariti’s residence. He took her dearest son Dhanabhaju and concealed him in his alms bowl. When Hariti came back to her residence and could not find her beloved son anywhere, she searched for him everywhere, even in the mountains and seas, but of no avail. She cried sheathed tears for the loss of her beloved son for a long time and finally she approached Buddha to find out where her beloved son was. At this the Buddha replied to her that since children are so dear to every parent, it would be unwise to cause suffering to people by devouring their children. Buddha then instructed the Yakashni Hariti about the value of compassion. Hariti accepted Buddha’s instruction heartily and made a commitment that she would never again harm or steal children, but instead protect them in future. At this Buddha returned her son Dhanabhaju and made her a guardian of the Buddha’s doctrine. Henceforth, she refrained from killing children and any sentient beings whatsoever and became a protector of them.