The Buddhist view about giving
There are many ways to support the construction of an external temple, with resources, time or labor, but the most common is through altruism. Making donations to build a temple allows us to cultivate merit and purify the karma of the three ports: body, speech and mind.
Regardless of the amount of resources that is given, it is important to have the motivation and pure intention to benefit all sentient beings.
Many years ago, at the time of the Buddha, a king in India offered the construction of 100 Buddhist temples. The Buddha accepted with great joy his proposal stating that the king would gain much merit and purify, through this action, karma of 100 thousand eons that was generated by ignorance.
The essence of the Mahayana path is the practice of the 6 Paramitas and generating the bodhicitta mind that comes from a pure motivation to benefit all beings.
The first of the Paramitas is Generosity. But when practicing generosity, it is important to assess the ultimate object of our practice. For example, when we give money to an alcoholic, the end will be harmful to the person and their environment. But when the object is pure, as it is the construction of a Buddhist temple, it will bring happiness to many beings without preferences. .
Milarepa said that it earns the same merit the one practicing the Dharma as the one that without practicing supports with donations to the Sangha or community and the construction of temples. By contributing differently for the benefit of all beings, together we can achieve enlightenment.