Final answer:
The proper descent path using a VASI system can be easily remembered by imagining starting in the lower right corner and following a circular staircase upward.
Step-by-step explanation:
The phrase to easily remember the proper descent path using a VASI system is to start in the lower right corner and follow the circular staircase upward through the building. This means that when using the VASI system, you should imagine starting at the bottom right and follow the path upwards, just like climbing a circular staircase. This visual helps pilots remember the correct descent path when using the VASI system.