The ancient art of meditation allows your Hero to recover more quickly between battles, enabling them to fight with renewed vigor each time. Upgrading this Knowledge substantially speeds up the restoration of your Hero's energy.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Increased Energy Restoration | Influence | Hero’s Experience |
| 1 | 3K | 1.5K | 0 | 1.5K | 3.75K | 340 | 00h 30m 00s | 1 | 190 | 3.2K | |
| 2 | 7.65K | 3.85K | 0 | 3.85K | 8.65K | 540 | 02h 30m 00s | Oracle 2 | 2 | 435 | 4.8K |
| 3 | 19.5K | 9.65K | 0 | 9.65K | 20K | 920 | 06h 30m 00s | Oracle 4 | 4 | 995 | 7.2K |
| 4 | 49K | 24.5K | 0 | 24.5K | 46K | 1.9K | 18h 00m 00s | Oracle 6 | 6 | 2.3K | 11K |
| 5 | 125K | 62K | 0 | 62K | 105K | 3.75K | 1d 18h 00m 00s | Oracle 8 | 8 | 5.25K | 16.5K |
| 6 | 315K | 160K | 0 | 160K | 245K | 7.8K | 4d 03h 00m 00s | Oracle 11 | 10 | 12.5K | 24K |
| 7 | 800K | 400K | 0 | 400K | 560K | 19.5K | 1w 4d 00h 00m 00s | Oracle 13 | 12 | 28K | 36K |
| 8 | 2.05M | 1.05M | 0 | 1.05M | 1.3M | 42.5K | 3w 5d 00h 00m 00s | Oracle 16 | 15 | 64K | 54K |
| 9 | 5.15M | 2.6M | 0 | 2.6M | 2.95M | 98K | 9w 1d 00h 00m 00s | Oracle 19 | 18 | 150K | 80.5K |
| 10 | 13M | 6.5M | 0 | 6.5M | 6.8M | 230K | 22w 5d 00h 00m 00s | Oracle 21 | 21 | 340K | 120K |
| 21.52M | 10.81M | 10.81M | 12.04M | 405.25K | 38w 1d 00h 30m 00s | 21,25 | 603.67K | 357.2K |
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