The stages of Samatha Meditation

Guri Sohal offers an Insight Timer Course called "Meditating Like a Monk," in which he outlines the stages below in more detail. I liked the course as an introduction to Samatha Meditation, helping me build a practice among a whirlwind of possible ways to structure my meditation practice.

The Nine Mental Abidings or Stages as described by Kamalaśīla

These stages are copied from Wikipedia and don’t have Guri‘s description. I hope to transcribe his descriptions some time.

1. Placement of the mind (S. cittasthāpana, Tib. འཇོག་པ - sems ’jog-pa) occurs when the practitioner is able to place their attention on the object of meditation, but is unable to maintain that attention for very long. Distractions, dullness of mind and other hindrances are common.
2. Continuous placement (S. samsthāpana, Tib. རྒྱུན་དུ་འཇོག་པ - rgyun-du ‘jog-pa) occurs when the practitioner experiences moments of continuous attention on the object before becoming distracted. According to B Alan Wallace, this is when you can maintain your attention on the meditation object for about a minute.[78]
3. Repeated placement (S. avasthāpana, Tib. བླན་ཏེ་འཇོག་པ - slan-te ’jog-pa) is when the practitioner's attention is fixed on the object for most of the practice session and she or he is able to immediately realize when she or he has lost their mental hold on the object and is able to restore that attention quickly. Sakyong Mipham Rinpoche suggests that being able to maintain attention for 108 breaths is a good benchmark for when we have reached this stage.[79]
4. Close placement (S. upasthāpana, Tib. ཉེ་བར་འཇོག་པ - nye-bar ’jog-pa) occurs when the practitioner is able to maintain attention throughout the entire meditation session (an hour or more) without losing their mental hold on the meditation object at all. In this stage the practitioner achieves the power of mindfulness. Nevertheless, this stage still contains subtle forms of excitation and dullness or laxity.[80]
5. Taming (S. damana, Tib. དུལ་བར་བྱེད་པ - dul-bar byed-pa), by this stage the practitioner achieves deep tranquility of mind, but must be watchful for subtle forms of laxity or dullness, peaceful states of mind which can be confused for calm abiding. By focusing on the future benefits of gaining Shamatha, the practitioner can uplift (gzengs-bstod) their mind and become more focused and clear.[81]
6. Pacifying (S. śamana,Tib. ཞི་བར་བྱེད་པ་ - zhi-bar byed-pa) is the stage during which subtle mental dullness or laxity is no longer a great difficulty, but now the practitioner is prone to subtle excitements which arise at the periphery of meditative attention. According to B. Alan Wallace this stage is achieved only after thousands of hours of rigorous training.[82]
7. Fully pacifying (S. vyupaśamana,Tib. རྣམ་པར་ཞི་བར་བྱེད་པ་ - nye-bar zhi-bar byed-pa), although the practitioner may still experience subtle excitement or dullness, they are rare and the practitioner can easily recognize and pacify them.
8. Single-pointing (S. ekotīkarana,Tib. རྩེ་གཅིག་ཏུ་བྱེད་པ་ - rtse-gcig-tu byed-pa) in this stage the practitioner can reach high levels of concentration with only a slight effort and without being interrupted even by subtle laxity or excitement during the entire meditation session.
9. Balanced placement (S. samādhāna,Tib. མཉམ་པར་འཇོག་པ་བྱེད་པ་ - mnyam-par ’jog-pa) the meditator now effortlessly reaches absorbed concentration (ting-nge-‘dzin, S. samadhi.) and can maintain it for about four hours without any single interruption.[82]
10. Śamatha, Tib. ཞི་གནས་, shyiné - the culmination, is sometimes listed as a tenth stage.

…taken from Wikipedia