This analogy is helpful because it provides a visual representation of the electron's location in an atomic orbital. It also helps to explain why electrons can be found in different energy levels and orbitals. The higher the energy level, the further the electron cloud is from the nucleus, and the more diffuse it becomes.
Another analogy that is sometimes used to describe the location of an electron in an atomic orbital is the standing wave analogy. This analogy compares the electron to a standing wave on a string. The different energy levels of the electron correspond to different harmonics of the standing wave.
The electron cloud analogy and the standing wave analogy are both useful tools for visualizing the location of an electron in an atomic orbital. However, it is important to remember that these are just analogies. The true nature of the electron is still not fully understood.