Quick answer
Gloom advances the Harbinger and is a broad progression/economy resource. Glimpses deepen the Bond of a specific Shell and unlock higher Bond tiers. Shell Points activate abilities inside the tiers you have opened and can currently be refunded/reallocated. The dangerous mistake is treating Glimpses as if they were freely respeccable Shell Points.
The three systems in one table
| Resource | Main job | Can you freely move it to another Shell? |
|---|---|---|
| Gloom | Harbinger levels and some economy functions | Not a Shell-specific permanent commitment |
| Glimpses | Deepen a particular Shell Bond | No — current launch reports treat spent Bond progress as permanent for that playthrough |
| Shell Points | Activate/upgrade available Shell abilities | Yes — current launch reports allow free refunds/reallocation |
Gloom: your broad progression currency
Gloom is the closest analogue to Souls/Runes. Killing enemies supplies it, and Beacons let you convert it into Harbinger progression. That broad progression benefits the bodies you inhabit rather than locking you into one Shell.
Gloom is also part of the launch economy. Balance Patch 1 reduced certain Gloom costs and changed how Shell-location hints are paid for, so old advance-access advice can be wrong.
Glimpses: the resource you should plan
Glimpses deepen your relationship with an individual Shell. Higher Bond tiers expose more of that Shell’s ability tree and memory content.
The important part: Bond investment is not the same as a normal skill respec. Multiple launch sources agree that Glimpses spent into a Shell’s Bond are not simply refunded and moved to another Shell on demand.
That is why “which Shell should I invest in?” is a real first-playthrough decision.
Shell Points: flexible build allocation
Shell Points are the flexible half of the build system. Once a Bond tier exposes abilities, Shell Points are used to activate/improve them within the Shell’s capacity.
Current launch guides agree that allocated Shell Points can be refunded without a currency fee. That lets you change a boss setup, try a resistance, or move points from an exploration passive into a damage loop.
Bond Tier is a gate, not a skill point
Think of Bond Tier as a door. Glimpses open the door to a higher row of options; Shell Points decide which options you actually turn on.
Having unused Shell Points does not let you buy an ability in a Bond tier you have not opened.
A safe first-playthrough spending pattern
- Unlock at least two early Shells.
- Put the minimum investment needed to inspect/understand their trees rather than immediately maxing one blind.
- Decide which playstyle you actually enjoy.
- Commit the bulk of your Glimpses to that Shell.
- Treat Shell Points as your tuning knobs and respec them when an encounter asks for a different answer.
This gives you experimentation without confusing reversible points with irreversible Bond progress.