When I started on the path I lived down the coast in the country. There were cliffs across from my house steeped over the ocean and a lovely little nook amongst some trees which hid my view from anyone who may be out walking on the track. I spent many sunset down there meditating and practicing the sun gazing technique. Wonderful times. Except I do remember the marsh flies. Very large and they had a nasty habit of biting off significant portions of flesh whenever they landed on you. I do exaggerate though the sensation of their bites made it feel like big chunks, very sharp and painful.
In that predicament, it's pretty difficult to remain unperturbed and even avatars fail if not in a state of full Samadhi. Is it in the autobiography where Sri Yukteswar scolds Yogananda for killing a mosquito while meditating?