close but no cigar
there is a period between each set of four...where you breath normally... for up to five minutes (Consolidation Period)
It is amazing how much people miss, when they think they already know ... no doubt the "Square" breathing serves a purpose, but does it allow you to "enter the quantum domain."?
One cycle is described above, and it is recommended to do three to four cycles in a row and then return to normal breathing. This “normal” breathing period is called the Consolidation period. Keep your eyes closed throughout the process and sit with your back straight in a comfortable position, both feet on the ground. When you begin your consolidation period, it is a time for you to bring focus and all of your attention to those things that bubble to the surface of your consciousness, knowing that these arise for a reason. This is an excellent time to apply the Six Heart Virtues (appreciation, compassion, forgiveness, humility, valor, and understanding) to any thought or feeling that manifests.
This consolidation period usually lasts about three to five minutes, but there are no set time limits. Use your intuition to guide this period of time. Generally, each repetition of the consolidation, and usually there are four or five, becomes less crowded with thoughts or feelings, and by the time you enter the final consolidation period you have emptied yourself of thoughts and feelings and entered the quantum domain.